25425737007 has 32 divisors (see below), whose sum is σ = 38036355840. Its totient is φ = 14973600000.

The previous prime is 25425737003. The next prime is 25425737017. The reversal of 25425737007 is 70073752452.

It is a happy number.

It is not a de Polignac number, because 25425737007 - 2² = 25425737003 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25425737007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25425737003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 302169 + ... + 377037.

It is an arithmetic number, because the mean of its divisors is an integer number (1188636120).

Almost surely, 2^25425737007 is an apocalyptic number.

25425737007 is a deficient number, since it is larger than the sum of its proper divisors (12610618833).

25425737007 is a wasteful number, since it uses less digits than its factorization.

25425737007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75175.

The product of its (nonzero) digits is 411600, while the sum is 42.

The spelling of 25425737007 in words is "twenty-five billion, four hundred twenty-five million, seven hundred thirty-seven thousand, seven".